Help! How Do I Know If My Dog is a Purebred? (Vet Answered)

ℹ️Jess asks about their dog
🗓️Asked on 5 February 2026
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This question has been answered by a vet

Dr. Paola Cuevas
Dr. Paola Cuevas MVZ

Veterinarian & Animal Behaviorist

With nearly two decades in veterinary medicine, Dr. Paola brings hands-on experience across multiple species. A graduate of the University of Guadalajara, she specializes in preventive care, animal welfare, and positive reinforcement training.

The Question

“Hi Dr. Paola,
How can I find out if my Havanese puppies are purebred Havanese? At what age can I breed my male dogs?“
– Jess

Quick Info

Sex: Male
Neutered/Spayed: No
Breed: Havanese
Dr. Paola Cuevas
Dr. Paola replied on 5 February 2026

Hi Jess,

Those are both very important questions, and I am glad you are asking them. Determining if your Havanese puppies are purebred cannot be done by appearance alone, since many small breeds can look similar. The most reliable way is through proper registration with a recognized kennel club and DNA testing. A DNA test can confirm parentage and breed heritage with good accuracy. Registration papers from a reputable registry add assurance, but they are only valid if the breeding was recorded correctly. Without these, DNA testing is the best option to know for certain.

As for breeding, it is important to wait until your male dogs are physically and mentally mature. While males can produce sperm as early as six months, responsible breeding should not occur until at least 18 to 24 months of age. This allows time to evaluate their health, temperament, and conformation, which are crucial to ensure the well-being of future litters and the breed as a whole. Veterinary screening for hereditary conditions common in Havanese, such as hip dysplasia, patellar luxation, and certain eye diseases, should be completed before considering breeding. Breeding too young or without appropriate health clearances can compromise both the sire and the puppies. Once you ensure that it is covered, please kiss a puppy for me!

Best,

– Dr. Paola

Disclaimer: The advice provided here is for informational purposes only and does not constitute a medical diagnosis. Always consult your local vet for emergencies.
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